**Forecast models for Buenos Aires on October 3 point to a mild night with temperatures likely in the 11–14°C range amid cloud cover and possible rain, creating balanced trader odds near 50% for both sub-8°C and 18°C+ extremes.** Springtime variability in the region stems from shifting wind patterns—northeasterly flows can advect warmer, moister air from the Atlantic while limiting nocturnal radiative cooling, whereas clearer or calmer conditions would allow faster heat loss. Current consensus from sources like the National Meteorological Service and global models emphasizes moderate humidity and persistent cloudiness that should moderate overnight lows, though small shifts in frontal timing or wind strength could push the minimum several degrees either way. Upcoming model runs and local observations will refine these thresholds ahead of resolution.